Hello experts. Im investigating inline mixing consoles. I need two things: 1: Can you recommend books with info about inline desks? 2: What models/brands do you know? I want to look for videos and user manuals, hopefully with block diagrams so I can study their signal paths. 3. Can you name a cost effective inline desk that I can purchase for under $10000 I only know of Toft, Audient and older SSLs (like the model 4000) Any recommendations are most welcome.